TM 11-424 Supports ML-29-B, ML-29-D, ML-29-E ; Anemometers ML-80, ML-80-A, ML-80-B ; Indicators ML-117, ML-117-A, ML-117-B, 1944-09-12 CONTENTS Paragraph Page CHAPTER 1. INTRODUCTION. Routine maintenance 40 General 1 1 Characteristics 2 1 CHAPTER 2. Section I. SUPPORTS ML-29-B AND ML-29-E ANEMOMETERS ML-80 AND ML-80-B; AND INDICATORS ML-117 AND ML-1 1 7-B. Description. List of components 3 Supports ML-29-B and ML-29-E 4 Anemometers ML-80 and ML-80-B 5 Indicators ML-117 and ML-1 1 7-B 6 Installation and operation. Location of equipment 7 Height of support 8 Determining north direction 9 Erecting Support ML-29-B or ML-29-E 10 Mounting Anemometer ML-80 or ML-80-B 11 Installing Indicator ML-117 or ML-1 1 7-B 12 Wiring 13 Orientation 14 Determining wind speed 15 Determining wind direction 16 Rheostats 17 Reading anemometer dials 18 Functioning of parts. Wind-direction system 19 Wind-speed system 20 Maintenance. Routine maintenance 21 Recalibrating Bearing ML-129-B or ML-129-E 22 Overhauling anemometer 23 Supplementary data. Maintenance parts list 24 CHAPTER 3. SUPPORT ML-29-D, ANEMOMETER ML-80-A, AND INDICATOR ML-117-A. Section I. Description. List of components 25 33 Support ML-29-D 26 33 Anemometer ML-80-A 27 36 Indicator ML-1 17-A 28 39 II. Installation and operation. Preparation 29 39 Erecting Support ML-29-D 30 40 Mounting Anemometer ML-80-A 31 42 Installing Indicator ML-1 17-A 32 43 Wiring 33 43 Orientation 34 43 Determining wind speed 35 44 Determining wind direction 36 45 Rheostats 37 45 III. Functioning of parts. Wind-direction system 38 45 Wind-speed system 39 46 IV. Maintenance. Routine maintenance 40 46 Overhauling Bearing ML- 129-D 41 46 Overhauling Anemometer ML-80-A 42 48 V. Supplementary data. Maintenance parts 43 50 DESTRUCTION NOTICE WHY — To prevent the enemy from using or salvaging this equipment for his benefit. WHEN — When ordered by your commander. HOW — 1. Smash — Use sledges, axes, handaxes, pickaxes, hammers, crow-bars, heavy tools. 2. Gut — Use axes, handaxes, machetes. 3. Burn — Use gasoline, kerosene, oil, flame throwers, incendiary grenades. 4. Explosives — Use firearms, grenades, TNT. 5. Disposal — Bury in slit trenches, fox holes, other holes. Throw in streams. Scatter. USE ANYTHING IMMEDIATELY AVAILABLE FOR DESTRUCTION OF THIS EQUIPMENT WHAT — 1. Smash — Wind-vane assembly, anemometer, indicator, and all spare parts. 2. Cut— Wires. 3. Burn — Records, instruction books. 4. Bend — Mast and guy rods. 5. Bury or scatter — Any or all of the above pieces. DESTROY EVERYTHING Digitized by Google.

"12 September 1944."

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